Wireless signal transmitting antenna, wireless signal receiving antenna, wireless signal transmitting system, wireless signal transmitting method, and wireless signal receiving method

Abstract

According to the present invention, when wireless communication is performed, a signal can be formed into a spiral beam (H), the spiral pitch of the signal can be changed, and a plurality of spiral beams (H) with different spiral pitches can be transmitted and received. The present invention pertains to a wireless signal transmitting antenna (10) including a signal emitting means (A) having N number of antenna elements (A1, . . . , AN) (where N is an integer satisfying N≥2) equally spaced on a circumference of circle, and a signal distribution means (B) for generating, from an input first signal (S), N number of second signals (G1, . . . , GN) having a phase difference from one another and outputting the N number of second signals (G1, . . . , GN) to the N number of antenna elements (A1, . . . , AN), respectively, so that a spiral beam (H) with the equiphase surface inclined spirally is output from the signal emitting means (A).

The invention claimed is: 
     
       1. A wireless signal transmitting method comprising:
 generating, from an input first signal, N number of second signals having a phase difference from one another, wherein N is an integer greater than or equal to 2; 
 generating, from an input third signal, N number of fourth signals having a phase difference from one another; 
 outputting the N number of second signals to N number of antenna elements equally spaced on a circumference of a circle, respectively, so that a first spiral beam with an equiphase surface inclined spirally is output from the N number of antenna elements; and 
 outputting the N number of fourth signals to the N number of antenna elements, respectively, so that a second spiral beam with an equiphase surface inclined spirally is output from the N number of antenna elements, 
 wherein the first spiral beam and the second spiral beam are orthogonally polarized. 
 
     
     
       2. A method for a wireless transmitter comprising:
 distributing N number of first signals to N number of antenna elements, respectively, wherein the N number of antenna elements are equally spaced on a circumference of a circle, and wherein N is an integer greater than or equal to 2; 
 distributing N number of second signals to the N number of antenna elements, respectively; and 
 outputting a first spiral beam and a second spiral beam from the N number of antenna elements, 
 wherein the first spiral beam is formed by the N number of first signals, the second spiral beam is formed by the N number of second signals, and the first spiral beam and the second spiral beam are orthogonally polarized, and 
 wherein the method further comprises:
 receiving M1 number of third signals, wherein M1 is an integer less than or equal to N; and 
 generating, from the M1 number of third signals, the N number of first signals having a phase difference from one another. 
 
 
     
     
       3. The method according to  claim 2 ,
 wherein the N number of first signals have a phase difference from one another so that a first equiphase surface of the first spiral beam is inclined. 
 
     
     
       4. The method for the wireless transmitter according to  claim 2 ,
 wherein each of the second signals have a same phase with each of the first signals. 
 
     
     
       5. The method according to  claim 2 , further comprising:
 receiving M2 number of fourth signals, wherein M2 is an integer less than or equal to N; and 
 generating the N number of second signals from the M2 number of fourth signals. 
 
     
     
       6. A wireless signal transmitting antenna comprising:
 a signal emitter configured to have N number of antenna elements equally spaced on a circumference of a circle, wherein N is an integer greater than or equal to 2; 
 a first signal distributor configured to generate, from an input first signal, N number of second signals having a phase difference from one another, and output the N number of second signals to the N number of antenna elements, respectively, so that a first spiral beam with an equiphase surface inclined spirally is output from the signal emitter; and 
 a second signal distributor configured to generate, from an input third signal, N number of fourth signals having a phase difference from one another, and output the N number of fourth signals to the N number of antenna elements, respectively, so that a second spiral beam with an equiphase surface inclined spirally is output from the signal emitter, 
 wherein the first spiral beam and the second spiral beam are orthogonally polarized. 
 
     
     
       7. A wireless transmitter comprising:
 a first circuitry configured to have N number of antenna elements equally spaced on a circumference of a circle, and to output a first spiral beam and a second spiral beam, wherein N is an integer greater than or equal to 2; 
 a second circuitry configured to distribute N number of first signals to the N number of antenna elements respectively; and 
 a third circuitry configured to distribute N number of second signals to the N number of antenna elements respectively, 
 wherein the first spiral beam is formed by the N number of first signals, the second spiral beam is formed by the N number of second signals, and the first spiral beam and the second spiral beam are orthogonally polarized, and 
 wherein the second circuitry is configured to receive M1 number of third signals and to generate, from the M1 number of third signals, the N number of first signals having, and wherein M1 is an integer less than or equal to N having a phase difference from one another. 
 
     
     
       8. The wireless transmitter according to  claim 7 ,
 wherein the N number of first signals are configured to have a phase difference from one another so that a first equiphase surface of the first spiral beam is inclined. 
 
     
     
       9. The wireless transmitter according to  claim 7 ,
 wherein each of the second signals is configured to have a same phase with each of the first signals. 
 
     
     
       10. The wireless transmitter according to  claim 7 ,
 wherein the third circuitry is configured to receive M2 number of fourth signals and to generate the N number of second signals from the M2 number of fourth signals, and wherein M2 is an integer less than or equal to N.